Technoboy- commented on PR #20613:
URL: https://github.com/apache/pulsar/pull/20613#issuecomment-1607329276
> > I think we need to process like this :
> > ```
> > policiesCache.forEach(((topicName, topicPolicies) -> {
> > if (listeners.get(topicName) != null) {
> > for (TopicPolicyListener<TopicPolicies> listener
: listeners.get(topicName)) {
> > try {
> > listener.onUpdate(topicPolicies);
> > } catch (Throwable error) {
> > log.error("[{}] call listener error.",
topicName, error);
> > }
> > }
> > }
> > }));
> > ```
>
> why?
If the listener has an error, the reader cannot be closed here, because the
reader is at the namespace level. Nor can other listeners not receive
notifications because of a problem with one topic listener. So, only log output
can be printed here
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